US4129209A - Bucket elevator - Google Patents

Bucket elevator Download PDF

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Publication number
US4129209A
US4129209A US05/745,644 US74564476A US4129209A US 4129209 A US4129209 A US 4129209A US 74564476 A US74564476 A US 74564476A US 4129209 A US4129209 A US 4129209A
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US
United States
Prior art keywords
bucket
chain
elevator
buckets
link member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/745,644
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English (en)
Inventor
Friedrich Mayfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TKV Transportanlagen Konstruktions und Vertriebd GmbH
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Individual
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Publication date
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Publication of US4129209A publication Critical patent/US4129209A/en
Assigned to MAYFELD, ANNA MARIE reassignment MAYFELD, ANNA MARIE LETTERS OF TESTAMENTARY (SEE DOCUMENT FOR DETAILS). EFFECTIVE DEC. 31, 1981. Assignors: MAYFELD, FRIEDRICH, DEC'D.
Assigned to TKV TRANSPORTANLAGEN-KONSTRUKTIONS- UND VERTRIEBS-GMBH reassignment TKV TRANSPORTANLAGEN-KONSTRUKTIONS- UND VERTRIEBS-GMBH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MAYFELD, ANNA MARIE, SOLE HEIRESS OF THE ESTATE OF FRIEDRICH MAYFELD, DEC'D.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/30—Details; Auxiliary devices
    • B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
    • B65G17/42—Attaching load carriers to traction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk

Definitions

  • This invention relates to conveyors for bulk material, and particularly to a bucket conveyor traveling in a steeply rising path and commonly referred to as a bucket elevator.
  • Another disadvantage of the rigid chain connection lies in the fact that the bottom of each bucket, when expanded by the action of heat, tends to increase the spacing between two traction chains. This causes marked wear to the teeth of the sprockets and of the plate links when the buckets run to the drum of the reversing station and causes deformation of the bottom of the bucket, eventually shearing off the connection bolts. The afore-mentioned fact causes annoying noises in the reversing station. Furthermore, blocking of the conveyor troughs when loading or unloading easily deforms the right-angle plates of chain links, so that the chain is brought to a disadvantageously inclined position.
  • FIG. 1 shows a supercapacity continuous bucket elevator of the invention in fragmentary side-elevational section
  • FIG. 2 illustrates a similar elevator in a view corresponding to that of FIG. 1;
  • FIG. 3 shows elements of the elevator of FIG. 2 in side elevation
  • FIGS. 4 and 5 respectively show the elevator of FIG. 2 in partial section on the lines IV -- IV and V -- V;
  • FIG. 6 illustrates a modified bucket of the invention in side-elevational section
  • FIG. 7 is a fragmentary sectional view of the bucket of FIG. 6 taken on the line VII -- VII.
  • FIG. 1 there is shown a continuous bucket elevator of the invention which is of the so-called super-capacity type capable of handling large-lump materials for high lifts.
  • the buckets 1 are longer in their direction of movement than they are wide and are each equipped with wheels 10 traveling on guide rails 11 along the straight portions of their path, as is shown in FIG. 5 only.
  • An apron 2 of approximately cylindrically arcuate shape about a transverse axis is integral with the trailing transverse end wall of each bucket 1 and covers the gap between consecutive buckets during straight upward travel. It will be understood that the buckets are filled from a non-illustrated chute at the lower end of their straight, upward path, and the aprons prevent portions of the load from falling through between consecutive buckets.
  • the buckets are mounted on selected links 5 of chains 4 separated from each other by three chain links 5'.
  • the latter are of the conventional type consisting of two flat, straight, and elongated webs connected transversely by two pivot pins 5", each pivot pin being common to two links and defining the pivot axis about which the two links may move angularly relative to each other.
  • the webs of the links 5 have integral lugs 25 diverging obliquely from respective pivot pins 5" beyond the pivot axes.
  • the free ends of the two lugs 25 define a laterally extending space z therebetween and, as shown in FIG. 4, one of the legs of L-shaped bracket 6 extends thereinto.
  • the other leg of bracket 6 is affixed to the bottom wall of the bucket so that the bucket is mounted on the chain link with free lateral play. All pivot axes are uniformly spaced along the chains 4, that is, the spacing of the pivot axes associated with the selected links 5 is equal to the corresponding spacing of the connecting links 5'.
  • the bucket elevator shown in FIGS. 2 to 5 differs from the afore-described apparatus mainly in modified drive chains 4' and by the location of aprons 3 on the leading rather than the trailing transverse end walls of the buckets 1' to achieve substantially the same seal between consecutive buckets during loading and upward travel.
  • the chains 4' consist of selected, bucket-carrying links 5a separated by only three connecting links 5'.
  • the spacing of the pivot axes or link pins on the links 5a is 50% greater than on the connecting links 5', thereby permitting an even greater spacing of the points of attachment of the bucket bottom walls to the lugs of the links 5a and a corresponding lengthening of the buckets 1'.
  • the otherwise unchanged buckets 1' are even farther separated from each other during reversal and unloading movement than are the buckets 1.
  • the head sprockets 12' are provided with notches 13' spaced apart one half of the spacing of the link pins on the links 5'.
  • the short legs of L-shaped brackets 6 are welded to the bottom wall of each bucket 1'.
  • the free legs are apertured at 8, and a pin 7 passes loosely through each aperture 8 and is fastened in corresponding apertures in lugs 25 of the associated chain link 5a, thereby permitting lateral movement of the bucket 1' between the laterally spaced webs of the lugs.
  • the aperture 8 in one of each pair of brackets 6 is a slot elongated in the direction of elevator travel so that no stress is exerted on the chains 4' by thermal expansion and contraction of the bucket 1'.
  • each bucket 1' is provided with an integral, transverse rib 26 in the loading space of the bucket and with a corresponding groove in its outer face.
  • the rib 26 reinforces the bucket as do the brackets 6.
  • Tubular bearings 14 are mounted in the grooves and receive the shafts 10' of the wheels 10.
  • the bottom wall of the bucket is formed with three transverse ribs and corresponding grooves.
  • Brackets 6' connected with lugs on links in the manner described above, but not specifically illustrated in FIGS. 6 and 7, are recessed in the two outer grooves, and the central groove receives the bearings for the wheel shafts 10'.
  • the shafts 10' are axially secured by transverse pins 10".

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chain Conveyers (AREA)
US05/745,644 1976-01-27 1976-11-29 Bucket elevator Expired - Lifetime US4129209A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7602182A FR2339549A1 (fr) 1976-01-27 1976-01-27 Fixation souple pour caisson de transporteur-elevateur
FR7602182 1976-01-27

Publications (1)

Publication Number Publication Date
US4129209A true US4129209A (en) 1978-12-12

Family

ID=9168432

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/745,644 Expired - Lifetime US4129209A (en) 1976-01-27 1976-11-29 Bucket elevator

Country Status (4)

Country Link
US (1) US4129209A (sl)
CA (1) CA1054548A (sl)
FR (1) FR2339549A1 (sl)
GB (1) GB1538203A (sl)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688669A (en) * 1982-04-05 1987-08-25 Rexnord Inc. Elevator bucket for high speed operation
US4736832A (en) * 1985-01-31 1988-04-12 Aumund-Fordererbau Gmbh Maschinenfabrik Flat link chain bucket conveyor
US4954069A (en) * 1987-12-29 1990-09-04 Franklin Friedwald Apparatus for molding chocolate bars
DE102009051043A1 (de) * 2009-10-28 2011-05-05 Beumer Gmbh & Co. Kg Becherförderer
CN102079438A (zh) * 2010-06-22 2011-06-01 无锡华中科技有限公司 石料提升机的提升机构
US20140311870A1 (en) * 2011-09-28 2014-10-23 AUMUND Fördertechnik GmbH Conveying system sealed off from the surrounding atmosphere
US10000340B2 (en) * 2016-11-23 2018-06-19 William F. Hart, Jr. Vented bucket

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1058776A (en) * 1910-05-24 1913-04-15 George W Mickel Water-motor.
US1422151A (en) * 1920-04-12 1922-07-11 Henry B Walker Chain attachment for elevator buckets
DE506420C (de) * 1928-11-04 1930-09-03 Peter Thielmann Transportband fuer Bergwerke mit auf auswechselbaren Buegeln aufgenieteten, Ioeffelartigen Schaufeln
US1838362A (en) * 1928-09-12 1931-12-29 Imp Irrigation Distr Digging bucket construction for excavators
US2339938A (en) * 1942-01-02 1944-01-25 Champion Pecan Machine Company Elevating mechanism
US2528195A (en) * 1946-10-25 1950-10-31 Yuba Mfg Company Dredge digging structure
US2547476A (en) * 1946-10-01 1951-04-03 White Metal Mfg Company Conveyer
US2987165A (en) * 1957-05-27 1961-06-06 Robert T Sheehan Bucket conveyor
US3083814A (en) * 1962-01-19 1963-04-02 Meyer Machine Co Conveyor bucket control
US3265189A (en) * 1964-09-08 1966-08-09 Charles R Larson Bucket conveyors
US3286816A (en) * 1964-01-24 1966-11-22 Knaust Herbert Bucket elevator
US3749228A (en) * 1972-06-14 1973-07-31 P Magaldi Protected belt conveyor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248547B (de) * 1964-04-25 1967-08-24 Rud Ketten Rieger & Dietz Becherwerk fuer heisses Foerdergut
DE2428176C3 (de) * 1974-06-11 1980-02-07 Friedrich Ing.(Grad.) 5840 Schwerte Mayfeld Gliederbandförderer mit Traggliedern in Form von Trögen

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1058776A (en) * 1910-05-24 1913-04-15 George W Mickel Water-motor.
US1422151A (en) * 1920-04-12 1922-07-11 Henry B Walker Chain attachment for elevator buckets
US1838362A (en) * 1928-09-12 1931-12-29 Imp Irrigation Distr Digging bucket construction for excavators
DE506420C (de) * 1928-11-04 1930-09-03 Peter Thielmann Transportband fuer Bergwerke mit auf auswechselbaren Buegeln aufgenieteten, Ioeffelartigen Schaufeln
US2339938A (en) * 1942-01-02 1944-01-25 Champion Pecan Machine Company Elevating mechanism
US2547476A (en) * 1946-10-01 1951-04-03 White Metal Mfg Company Conveyer
US2528195A (en) * 1946-10-25 1950-10-31 Yuba Mfg Company Dredge digging structure
US2987165A (en) * 1957-05-27 1961-06-06 Robert T Sheehan Bucket conveyor
US3083814A (en) * 1962-01-19 1963-04-02 Meyer Machine Co Conveyor bucket control
US3286816A (en) * 1964-01-24 1966-11-22 Knaust Herbert Bucket elevator
US3265189A (en) * 1964-09-08 1966-08-09 Charles R Larson Bucket conveyors
US3749228A (en) * 1972-06-14 1973-07-31 P Magaldi Protected belt conveyor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688669A (en) * 1982-04-05 1987-08-25 Rexnord Inc. Elevator bucket for high speed operation
US4736832A (en) * 1985-01-31 1988-04-12 Aumund-Fordererbau Gmbh Maschinenfabrik Flat link chain bucket conveyor
US4954069A (en) * 1987-12-29 1990-09-04 Franklin Friedwald Apparatus for molding chocolate bars
DE102009051043A1 (de) * 2009-10-28 2011-05-05 Beumer Gmbh & Co. Kg Becherförderer
CN102079438A (zh) * 2010-06-22 2011-06-01 无锡华中科技有限公司 石料提升机的提升机构
US20140311870A1 (en) * 2011-09-28 2014-10-23 AUMUND Fördertechnik GmbH Conveying system sealed off from the surrounding atmosphere
US9004267B2 (en) * 2011-09-28 2015-04-14 Aumund Fordertechnik Conveying system sealed off from the surrounding atmosphere
US10000340B2 (en) * 2016-11-23 2018-06-19 William F. Hart, Jr. Vented bucket
US10233024B2 (en) * 2016-11-23 2019-03-19 William F. Hart, Jr. Vented bucket

Also Published As

Publication number Publication date
FR2339549B1 (sl) 1979-07-27
FR2339549A1 (fr) 1977-08-26
CA1054548A (en) 1979-05-15
GB1538203A (en) 1979-01-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MAYFELD, ANNA MARIE

Free format text: LETTERS OF TESTAMENTARY;ASSIGNOR:MAYFELD, FRIEDRICH, DEC D.;REEL/FRAME:004120/0218

Effective date: 19821125

Owner name: TKV TRANSPORTANLAGEN-KONSTRUKTIONS- UND VERTRIEBS-

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MAYFELD, ANNA MARIE, SOLE HEIRESS OF THE ESTATE OF FRIEDRICH MAYFELD, DEC D.;REEL/FRAME:004120/0217

Effective date: 19830405